There are clear ones, for medicines that don't degrade in light.

Two small clear plastic ones were coming out of his nose.

There were prints on both, very clear ones; and under the microscope they proved identical.

And cover lenses, even clear ones, are not legal in the US.

There aren't any signs at all, let alone clear ones.

I raised my eyes and met the dark clear ones of the artist fixed full upon me.

I've had glimpses of this, but never clear ones.

It was one of the new clear ones.

Yeah I mean we got hairnets at work sort of clear ones though.

The clearest ones, observed all over the world, happened in 1969, 1978, 1991, and 1999.